EPA tightens ground-level ozone standard to 70 ppb
Green Car Congress
OCTOBER 1, 2015
EPA examined nearly 2,300 studies in this review of the ozone standards including more than 1,000 new studies published since the last review of the standards in 2008. billion annually in 2025 (outside of California), outweighing the estimated annual costs of $1.4 230,000 asthma attacks in children. 160,000 days when kids miss school.
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